Molding-machine.



O. F. KNOWLTON & P. P. ELLIOT.

MOLDING MACHINE.

APPLICATION FILED JULY 8, 1909.

1 ,094,723. Patented Apr. 28, 1914.

3 SHEETSSHEET l.

COLUMBIA PLANO-GRAPH 60., WASHINGTON, D. c.

G. P. KNOWLTON & P. P. ELLIOT.

MOLDING MACHINE.

APPLICATION FILED JULY 8, 1909.

1,094,723. Patented Apr. 28, 191.4.

3 SHEETS-SHEET 2.

coLuMBIA PLANoaRAPl-l (20-. WASHINGTON, D. c.

G. P. KNOWLTON & F. P. ELLIOT.

' MOLDING MACHINE.

APPLICATION FILED JULY 8, 19Q9.

Patented Apr. 28, 1914.

a SHEETS-SHEET 3.

IA PLANOORAPH $0., 115mm, n. o,

STATES PATENT F Flt CHARLES F. KNOXVL'ION, OF ROSS TOWNSHIP, ALLEGHENYCOUNTY, AND FRANK F. ELLIOT, OF PITTSBURGH, PENNSYLVANIA, ASSIGNORS TOTHE OSBOR-N 1VIANUFAC- TUBING- GOMPANY, OF CLEVELAND, 01-110, ACOREPORATION OF 01-110.

MOLDING-MACHINE.

To aZZ whom it may concern:

Be it known that we, CHARLES F. KNOWL- TON and F RANK F. ELLIoT,citizens of the Ynited States, residing at Ross township and Pittsburgh,respectively, in the county of Allegheny and State of Pennsylvania, haveinvented certain new and useful 1mprovements in liiolding-Wlachines, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

Our invention consists of an improvement in molding machines, and it hasfor its object to provide a machine consisting of a flask-supportingframe and a patterncarrying plunger operable therein, means foractuating the plunger, means for adjusting the frame and plunger armsfor different sizes of flasks, means for compensating for inaccuraciesin the parts to provide for the desired stroke, and other features ofconstruction as shall be more fully hereinafter set forth.

The present invention utilizes means for effecting vertical movement ofthe pattern and its carrier for the full length of the draw with arelatively shorter crank travel through operating means somewhat similarto those shown in our prior application filed March 30, 1909, Serial No.486,812.

In the drawings: Figure 1 is a view of the machine in front elevation,showing the pattern carrier raised. Fig. 2 is a side view of Fig. 1.Fig. 3 is a vertical sectional view on the line 111. III. of Fig. 2,showing the pattern carrier lowered. Fig. 1 is a plan view of themachine, partly in section. Figs. 5 and 6 are side and end views of theadjusting stud. Fig. 7 is an enlarged detail view of the operating linkand lever mechanism for the pattern carrier, extender. Fig. 8 is a sideView of Fig. 7. Fig. 9 is a view similar to Fig. 8, showing the crankrotated a one-half revolution, and the links correspondingly raised.Fig. 10 is a similar view showing the crank rotated an entirerevolution, the links and pattern carrier frame being entirely raisedand nested around the crank shaft. Fig. 11 is a sectional detail view ofone side of the machine on the line 111. XI. of Fig. 2 showing thepattern carrier lowered and the flask support and pattern support ad-Specification of Letters Patent.

Application filed July 8, 1909.

Patented Apr. 28, 1914. Serial 1%. 506,514.

justed inwardly. Fig. 12 is a sectional view on the line X11. X11.enlarged of Fig. 7.

2 represents the pedestal or base of the machine, of any suitable form,having upwardly extending supporting frame members 3, 3, at each side,by which the upper stationary flask-supporting structure is carried upona connecting table structure 4; extending across from one of said frames3 to the other. Said table is flat upon its upper surface, which ispreferably faced for mounting upon it the upwardly extendingfiaslesupporting frames 5, 5, upon the upper edges of which is carriedthe flask. Said frames 5 are provided with inwardly eX- tending bracketfeet 6 mounted upon the back and front and end edges of the table 1 andsecured thereon by bolts 7 extending downwardly through slots 8 andtapped into the table, by which means frames 5 may be set inwardly oroutwardly exactly to the desired degree and there secured in position,as will be readily understood. Depending downwardly below the table is abearing 9 in which is carried the operating shaft 10 having thehandwheel 11 at its outer end, and at its inner end the double-sidedactuating crank 12 for operating the pattern-carrying frame. The patternframe, which is slidingly mounted within the main flask-supportingframe, and constitutes the plunger of the machine, consists of avertically reciprocating frame 13 having a downwardly extending centralstem 1a operable in a guiding bearing in base 2, with upwardly extendinglugs 15 for engagement by the operating link mechanism. The frame 13 iscut out at its middle portion, preferably connected by a strengtheningcross bar 13, and is provided with flat faced upper base portions 16,16, at each side, upon which, like frame are mounted the inwardly andoutwardly adjustable pattern carrier extensions or bracket frames 17,17. The bases 16 are each provided with a guiding strip 16 and a seriesof dowel pin holes 18 at their central portion and slotted bolt openings19 at each side thereof, frames 17 having dowel pins 20 fitting intoholes 18 whereby the frames are positively set at the desired location,and secured by bolts 21 passing through openings of the base flanges offrames 17 and slotted openings 19. By this Wm militia s igle machinecapable of use with several sizes of ll; ks or patterns.

Frames 1''? are provided at each outer side with a i -shaped guide 22set within a i-shapi-id groove of a slide bearing which in turn ismounted between adjustable bearing blocks 2-jt haying tapered 1nner wedg faces bearing against correspondin H tapered faces of bearing 23 itmay be adjusted through set caring 23 is also adjusted and rews 2G, andby this means it nit t 1e Vertical alinement of rrier may be accuratelyproyided f wear compensated, the bearings 223 being set forwardly orbackwardly or inwardly or outwardly and there positirely held. This afeature of especial advantage in. connection with the adjustabil'ty ofthe parts, rendering it possible to set hem in or out together andproriding for .kiiip; up of any wear.

.0 pattern. carrier frame and its upextending adjustable patterncarryrackelis l? are yerlically reciprocated he llasit-supporting frameby the its hand wheel 11 through and linkw 2T, 28. 'llhes links as showi are of substantially semi-cylinch*ical form, pi oted together 3yadjusting stud or be t s 28, 28, by

whereby screws l 'l L -i red by ECL- .a will be seen t the pattern i 29,journaled in outer lin shank portiim, and by an eccentric or cam portion30 in the end of middle interruling}- linl 2? litui prorided with a keyextension ext r beyond link 28 at one or both sides turning by a wrenchor key, and is secured in place by a set screw inserted by its pointinto one of a series of apertures 33 located. around the eccentric 30.By this means it will be seen that the links 27, 28, may be accuratelyadjusted toward or from each other, thereby adjusting the otherterininal connections of the links with relation other, so as to insureagainst variapattern Curr er with relation to supporh due to ina-curacies in liu- -lc. and inv hing exact 'al' 1g and the patterndesired w .h relatcr terminal. of link 27 is pirotully connected 2 crankl2 which as shown is double-sided, while tile tern'iin: inks aresimilarly cm'inected --i the upwardly ere tending? h use of the frame than in ardly JC-tti'll J ipon the hub d at T .1 r end with a of cranks 12ai usual parting board and the flask located upon supporting frame 5,and the iattern upon brackets 17, the plunger being in its lowermostposition rotation of sha t l0 in the direction of the arrow will. raisethe links during a half rotation of the crank to the position indicatedin Fig. 1.), link 27 by its semi-circular shape assuming the positionaround the hub of cranks l2 and bearing ther against by the inwardlyprojecting lug -36 whereby it will ani'uilarly conform to and sin-roundthe center of shaft 10. Upon furthe rotation of the shaft and c 'auk to1e lowern'iost position dink 27 now formi a portion of the crank in itsassemblage ierewith,-carries pivotal stud 20 around same manner, thetwin links 28 assuml i sition by means of connection as will be readilyunderstood. in lowering the pattern carrier it is simply necessary toreverse the rotation of cranks 12, whereupon it will be positiyelylowered to its original posit'um. by the thrust of the crank and links,assisted by grarity. It will be observed that by the arrangement of thelinks 28 in pairs they embrace the cranks 12- when assembled, with ampleclearance, and that the operation. of the pattern carrier in itsyertical travel is positiyely guided by stem ll and by the slidebearings 22 within their adjustable guides As shown in Fig. l, the tableis cut out at its middle portion trauiversely for clearance of theframes 17 and the operating crank and link mechanism whereby the pattern carrier is free to reciprocate without interference.

The adaptability of the machine for ad justment to different sizes 0':flasks and patterns is a feature of very considerable ad- "antagc inmachines of this type, permitting it to be used with a number of flask;and patterns of dilferent sizes, which otherwise would require a machinefor each. sis the adjustahility llaslesuppoij'ting frame and patterncarrier facilitate the successful and accurate operation of the machine.

it will be observed that by the combined lever and link mechanism thethrow of the lever is n'niltiplied, so that, having; raised the patterncarrier to the full extent of the throw of the lever on one-halfrevolution, a further onehalf revolution duplicates the same iftingoperation, thereby doubling;- the capacity of the lever within. therestricted space, which is also a feature of great advantage in machinesof this type.

hile The advantages of a molding apparatus in which the pattern may beinserted within the flask for packing and then withdrawn for its fulllength by the compact actuating mechanism above described, will bereadily appreciated by all those familiar with this class of machinery,and avoids the necessity of providing a space for operative mechanism,the length of travel of which is coextensive with that of the pattern.

The invention may be changed or varied in difierent details or featuresof construction, or its proportions may be so designed to suit varyingconditions of use, but all such changes are to be considered as withinthe scope of the following claims.

lVhat we claim is l. A. molding machine having a flask support providedwith adjustable guideways, a reciprocable plunger, and laterallyadjustable pattern supporting brackets mounted thereon having guidesengaging said guideways.

A molding machine consisting of a supporting base and frame having atop, laterally adjustable flasksupporting brackets thereon provided withguideways, and a re ciprocable plunger having pattern supportingbrackets provided with guides engaging said guideways.

3. A molding machine consisting of asup porting base and frame having atop, laterally adjustable flasksupporting brackets thereon provided withguideways, and a reciprocable plunger having laterally adjustablepattern-supporting brackets provided with guides engaging saidguideways.

-il-. A molding machine consisting of asupporting base and frame havinga top, later ally adjustable flask-supporting brackets thereon providedwith guideways, and a reciprocable plunger having pattern-supportingbrackets engaging said guideways.

5. A molding machine consisting of a supporting base and frame having atop, laterally adjustable flasksupporting brackets thereon ])1O"l(lCClwith adjustable guideways, and a reciprocable plunger havingpatternsupporting brackets engaging said guideways.

(3. in a molding machine, the combination of a base and frame, laterallyadjustable flask-supporting brackets mounted on the frame provided withguideways, a vertically reciprocable plunger mounted within the framehaving laterally adjustable pattern supports provided with guidesengaging said guideways, and means for actuating the plunger.

7. In a molding machine, the combination of a base and frame, laterallyadjustable flask-supporting brackets mounted on the frame, a verticallyreciprocable plunger mounted within the frame having laterallyadjustable pattern supports, means for guiding the plunger and patternsupports, and means for actuating the plunger.

8. In a molding machine, the combination of a base and frame, laterallyadjustable flask-supporting brackets mounted on the frame havingadjustable guideways, a ver tically reciprocable plul'iger mountedwithin the frame having laterally adjustable pattern-supporting bracketsprovided with guides engaging said guideways, and means for actuatingthe plunger.

9. In a molding machine, the combination with a supporting base and avertically reciprocable plunger provided with laterally adjustablepattern supports having guides, and means for reciprocating the plunger,of a frame extending upwardly from the base at each side of the plungerprovided with laterally adjustable flask supports having adjustableguide-ways engaging the guides of the pattern supports.

10. In a molding machine, the combination with a supporting base and avertically reciprocable plunger provided with laterally adjustablepattern supports having guides, and means for reciprocating the plunger,of a frame extending upwardly from the base at each side of the plungerprovided with laterally adjustable flask supports having longitudinalguideways engaging the guides of the pattern supports and wedge-facedadjusting strips, and means for adjusting said strips and guideways,substantially as set forth.

11. In a molding machine, the combination with a frame provided withflask supports, of a vertically reciprocable patternsupporting plunger,an operating shaft and crank mounted in bearings in the frame, and aplurality of semi-circular links connecting said crank with the plunger,substantially as set forth.

12. In a molding machine, the combination with a frame provided withflask supports, of a vertically reciprocable patternsupporting plunger,an operating shaft and crank mounted in bearings in the frame, aplurality of semi-circular links connected at their outer ends with thecrank and plunger respectively, and an adjusting pivoting studconnecting the inner ends of said links and provided with an eccentricadjusting bearing portion, substantially as set forth.

13. In a molding machine, the combination with a frame provided withflask supports, of a vertically reciprocable patternsupporting plunger,an operating shaft and crank mounted in bearings in the frame, aplurality of semi-circular links connected at their outer ends with thecrank and plunger respectively, an adjusting pivoting stud connectingthe inner ends of said links and provided with an eccentric adjustingbearing portion, and means for adjusting and securing said stud,substantially as set forth.

let. in a molding machine, the combination with a frame provided withflask supports, of a 'vertically reciprocable patternsnpportingplunger,an operating shaft and crank mounted in hearings in the frame, and a,plurality of semi-circular links connecting said crank with the plunger,one of said links having a hub bearing lug, substantially as set forth.

15. In a molding machine, the combination with a frame provided withflask supports, of a vertically reciprocable patternsupporting plunger,an operating shaft and crank mounted in hearings in the frame, and aplurality of semi-circular links connecting said crank with the plunger,one of said links having a limiting abutment, substantially as setforth.

16.111 a machine of the character de scribed, the combinatirm with asupporting frame and a one-piece wedge shaped guideway member thereinhaving inner and outer inclined faces, of adjusting blocks engaging theguideway member, substantially as set forth.

1?. In a machine of the character clescribed, the combination with asupporting frame and a wedge shaped guideway member therein, ofadjusting blocks engaging the guideway member, and a reciprocatingelement having an interfitting wedge-shaped guide, substantially as setforth.

7 18. In a machine of the character described, the combination with alate'ally adjustable supporting frame and a onepiece wedge shapedguideway member therein having inner and outer inclined faces, ofadjusting blocks engaging the guideway member, substantially as setforth.

In testimony whereof we allix our signatures in presence of twowitnesses.

CH ARLES F. KNO WLTUN. F KANK F. ELLIQT. ll'i tnesses C. M. CLARKE,CHAS. S. Lerner.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of 'Eatents, Washington, D. '9.

